Table 3.
Empirical powers for S1(t) = 1 − exp(−t) and S2(t) = 1 − exp(−t + t*), where t* is the median difference; significance level = 0.05
| Mean censoring proportions | |||||||
|---|---|---|---|---|---|---|---|
| ni | t* | 0.43,0.43 | 0.28,0.28 | 0.1,0.1 | 0.01,0.01 | 0.1,0.28 | 0.1,0.43 |
| 50 | 0.1 | 0.051 | 0.076 | 0.077 | 0.080 | 0.078 | 0.062 |
| 0.2 | 0.123 | 0.126 | 0.167 | 0.169 | 0.168 | 0.158 | |
| 0.3 | 0.248 | 0.291 | 0.313 | 0.323 | 0.312 | 0.260 | |
| 0.4 | 0.383 | 0.448 | 0.474 | 0.481 | 0.450 | 0.434 | |
| 0.5 | 0.571 | 0.636 | 0.669 | 0.676 | 0.653 | 0.608 | |
| 100 | 0.1 | 0.091 | 0.089 | 0.117 | 0.134 | 0.101 | 0.086 |
| 0.2 | 0.243 | 0.281 | 0.284 | 0.305 | 0.266 | 0.258 | |
| 0.3 | 0.468 | 0.522 | 0.532 | 0.565 | 0.558 | 0.517 | |
| 0.4 | 0.717 | 0.753 | 0.811 | 0.812 | 0.788 | 0.775 | |
| 0.5 | 0.892 | 0.913 | 0.927 | 0.937 | 0.919 | 0.916 | |
| 200 | 0.1 | 0.122 | 0.141 | 0.169 | 0.185 | 0.168 | 0.128 |
| 0.2 | 0.478 | 0.494 | 0.496 | 0.501 | 0.491 | 0.486 | |
| 0.3 | 0.835 | 0.848 | 0.847 | 0.855 | 0.838 | 0.831 | |
| 0.4 | 0.953 | 0.976 | 0.977 | 0.978 | 0.975 | 0.970 | |
| 0.5 | 0.997 | 0.998 | 0.998 | 0.999 | 0.998 | 0.998 | |